using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms.Design.Behavior;

namespace WarmlyShip
{
    /// <summary>
    /// Класс, отвечающий за прорисовку и перемещение объекта-сущности
    /// </summary>
    internal class DrawningWarmlyShip
    {
        /// <summary>
        /// Класс-сущность
        /// </summary>
        public EntityWarmlyShip? EntityWarmlyShip { get; private set; }
        /// <summary>
        /// Ширина окна
        /// </summary>
        private int _pictureWidth;
        /// <summary>
        /// Высота окна
        /// </summary>
        private int _pictureHeight;
        /// <summary>
        /// Левая координата прорисовки корабля
        /// </summary>
        private int _startPosX;
        /// <summary>
        /// Верхняя кооридната прорисовки корабля
        /// </summary>
        private int _startPosY;
        /// <summary>
        /// Ширина прорисовки корабля
        /// </summary>
        private readonly int _shipWidth = 140;
        /// <summary>
        /// Высота прорисовки корабля
        /// </summary>
        private readonly int _shipHeight = 60;
        /// <summary>
        /// Инициализация свойств
        /// </summary>
        /// <param name="speed">Скорость</param>
        /// <param name="weight">Вес</param>
        /// <param name="bodyColor">Цвет корпуса</param>
        /// <param name="additionalColor">Дополнительный цвет</param>
        /// <param name="pipe">Признак наличия труб</param>
        /// <param name="fuelCompartment">Признак наличия отсека для топлива</param>
        /// <param name="width">Ширина картинки</param>
        /// <param name="height">Высота картинки</param>
        /// <returns>true - объект создан, false - проверка не пройдена, нельзя создать объект в этих размерах</returns>
        public bool Init(int speed, double weight, Color bodyColor, Color additionalColor, bool pipe, bool fuelCompartment, int width, int height)
        {
            if (width < _shipWidth || height < _shipHeight)
            {
                return false;
            }
            _pictureWidth = width;
            _pictureHeight = height;

            EntityWarmlyShip = new EntityWarmlyShip();
            EntityWarmlyShip.Init(speed, weight, bodyColor, additionalColor, pipe, fuelCompartment);
            return true;
        }
        /// <summary>
        /// Установка позиции
        /// </summary>
        /// <param name="x">Координата X</param>
        /// <param name="y">Координата Y</param>
        public void SetPosition(int x, int y)
        {
            if (x < 0 || x + _shipWidth > _pictureWidth)
            {
                x = Math.Max(0, _pictureWidth - _shipWidth);
            }
            if (y < 0 || y + _shipHeight > _pictureHeight)
            {
                y = Math.Max(0, _pictureHeight - _shipHeight);
            }
            _startPosX = x;
            _startPosY = y;
        }
        /// <summary>
        /// Изменение направления перемещения
        /// </summary>
        /// <param name="direction">Направление</param>
        public void MoveTransport(DirectionType direction)
        {
            if (EntityWarmlyShip == null)
            {
                return;
            }
            switch (direction)
            {
                //влево
                case DirectionType.Left:
                    if (_startPosX - EntityWarmlyShip.Step > 0)
                    {
                        _startPosX -= (int)EntityWarmlyShip.Step;
                    }
                    break;
                //вверх
                case DirectionType.Up:
                    if (_startPosY - EntityWarmlyShip.Step > 0)
                    {
                        _startPosY -= (int)EntityWarmlyShip.Step;
                    }
                    break;
                // вправо
                case DirectionType.Right:
                    if (_startPosX + _shipWidth + EntityWarmlyShip.Step < _pictureWidth)
                    {
                        _startPosX += (int)EntityWarmlyShip.Step;
                    }
                    break;
                //вниз
                case DirectionType.Down:
                    if (_startPosY + _shipHeight + EntityWarmlyShip.Step < _pictureHeight)
                    {
                        _startPosY += (int)EntityWarmlyShip.Step;
                    }
                    break;
            }
        }
        /// <summary>
        /// Прорисовка объекта
        /// </summary>
        /// <param name="g"></param>
        public void DrawTransport(Graphics g)
        {
            if (EntityWarmlyShip == null)
            {
                return;
            }
            Pen pen = new(Color.Black);
            Brush BodyBrush = new SolidBrush(EntityWarmlyShip.BodyColor);
            Brush additionalBrush = new SolidBrush(EntityWarmlyShip.AdditionalColor);
            // корпус
            Point point1 = new Point(_startPosX, _startPosY + 30);
            Point point2 = new Point(_startPosX + 140, _startPosY + 30);
            Point point3 = new Point(_startPosX + 120, _startPosY + 60);
            Point point4 = new Point(_startPosX + 20, _startPosY + 60);
            Point[] curvePoints = { point1, point2, point3, point4 };
            g.FillPolygon(BodyBrush, curvePoints);
            g.DrawPolygon(pen, curvePoints);
            // палуба
            Brush brBeige = new SolidBrush(Color.Beige);
            g.FillRectangle(brBeige, _startPosX + 10, _startPosY + 20, 110, 10);
            g.DrawRectangle(pen, _startPosX + 10, _startPosY + 20, 110, 10);
            // якорь
            Point point_1 = new Point(_startPosX + 130, _startPosY + 40);
            Point point_2 = new Point(_startPosX + 130, _startPosY + 33);
            g.DrawLine(pen, point_1, point_2);
            Point point_3 = new Point(_startPosX + 130, _startPosY + 40);
            Point point_4 = new Point(_startPosX + 127, _startPosY + 37);
            g.DrawLine(pen, point_3, point_4);
            Point point_5 = new Point(_startPosX + 130, _startPosY + 40);
            Point point_6 = new Point(_startPosX + 133, _startPosY + 37);
            g.DrawLine(pen, point_5, point_6);
            Point point_7 = new Point(_startPosX + 129, _startPosY + 35);
            Point point_8 = new Point(_startPosX + 131, _startPosY + 35);
            g.DrawLine(pen, point_7, point_8);
            if (EntityWarmlyShip.Pipe)
            {
                //трубы
                g.FillRectangle(additionalBrush, _startPosX + 20, _startPosY + 5, 10, 15);
                g.DrawRectangle(pen, _startPosX + 20, _startPosY + 5, 10, 15);
                g.FillRectangle(additionalBrush, _startPosX + 60, _startPosY + 5, 10, 15);
                g.DrawRectangle(pen, _startPosX + 60, _startPosY + 5, 10, 15);
                g.FillRectangle(additionalBrush, _startPosX + 100, _startPosY + 5, 10, 15);
                g.DrawRectangle(pen, _startPosX + 100, _startPosY + 5, 10, 15);

                Brush brBlack = new SolidBrush(Color.Black);
                g.FillRectangle(brBlack, _startPosX + 20, _startPosY, 10, 5);
                g.DrawRectangle(pen, _startPosX + 20, _startPosY, 10, 5);
                g.FillRectangle(brBlack, _startPosX + 60, _startPosY, 10, 5);
                g.DrawRectangle(pen, _startPosX + 60, _startPosY, 10, 5);
                g.FillRectangle(brBlack, _startPosX + 100, _startPosY, 10, 5);
                g.DrawRectangle(pen, _startPosX + 100, _startPosY, 10, 5);
            }
            if (EntityWarmlyShip.FuelCompartment)
            {
                // отсек под топливо
                g.FillRectangle(additionalBrush, _startPosX + 30, _startPosY + 45, 20, 15);
                g.DrawRectangle(pen, _startPosX + 30, _startPosY + 45, 20, 15);
                g.FillRectangle(additionalBrush, _startPosX + 50, _startPosY + 45, 20, 15);
                g.DrawRectangle(pen, _startPosX + 50, _startPosY + 45, 20, 15);
                g.FillRectangle(additionalBrush, _startPosX + 70, _startPosY + 45, 20, 15);
                g.DrawRectangle(pen, _startPosX + 70, _startPosY + 45, 20, 15);
            }
        }
    }
}